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DC 12V PWM 4-Wire Fan Temperature Controller Speed Governor for PC Fan/Alarm

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Description:
The controller only controls the speed of the four line standard specification Intel PWM fan, do not turn off the fan. With full digital control, accurate temperature setting and precise control. It integrates manual speed regulation and automatic temperature control and speed regulation function. Manual speed control from 10%-100%, each 5% is a gear. Automatic temperature control speed from 30 degrees Celsius, there are 49 kinds of temperature zone combination. It supports three line to four line control, setting parameters automatically save.

Parameters:

Parameter Value
Operating voltage DC12V can work in 8-18V range
Fan interface 2510-4P lacks 1 bends (special interface for computer 4P fan
Consumption current No more than 20mA
Fan current Less than 3A
Drive output range 10% -100
Operating temperature -10 Celsius to 60 Celsius
Temperature probe parameters NTC 50K B=3950
Probe temperature Small black head 120 degrees
Ring probe 110 Celsius
Board size 34mm*19mm*11mm (excluding extended interface)
Fan interface extends 8mm
Setting parameters default factory Low speed 20%.
Acceleration temperature 30 Celsius.
Acceleration width 5 Celsius.
Do not shut down the output.
At this temperature setting, holding the probe with the palm of the hand will accelerate in a few minutes. If the probe is clamped into the armpit, it will reach full speed in 2 minutes.


Components:
1>. Input line: red black power line is only welding 12V positive and negative power cord, as a general use. The three wire connector is equipped with a 2510-3P plug, which is used to measure the speed of some main board three wire fan ports. Large 4P interface facilitates power acquisition from chassis.
2>. temperature probe: small black line’s head is short, low heat capacity. It is suitable for testing narrow space and air temperature, and the response is relatively fast. The ring probe is enclosed inside a ring metal head with a diameter of 4.2mm. It is suitable for mounting on the radiator or other heating object surface with screws.

Manual automatic integration control:
1>. Manual control without temperature probe. Click / double-click (double-click speed not too fast) button up / down gear. Each shift continues after 20 seconds, and the gear is automatically stored. The No. 2 indicator flashes rapidly in 20 seconds (when the temperature control is invalid). When the flash is stopped, it indicates that the file has been stored. The 3 / 1 indicator light is always on when you can not continue to increase / not continue to reduce the position.
2>. When the temperature probe is installed, the manual speed is used as the initial low speed (bottom line speed). When the temperature exceeds the accelerating temperature, the fan speed accelerates smoothly with the increase of temperature.
When the temperature reaches and exceeds the sum of the acceleration temperature and the acceleration width (full speed temperature), the fan runs at full speed.
Set the acceleration temperature and acceleration width parameters as shown in the schematic diagram below. The number 123 represents the indicator light on the board (red) and the (white) state is displayed in binary order:



 
Example instruction:

Bottom line 20%, acceleration temperature 35, acceleration width 15.
When the probe temperature is lower than 35 degrees centigrade, the output signal is always 20%. When the probe temperature is higher than 35 degrees, the controller can increase the output signal smoothly according to the temperature rise, and the fan accelerates. When the probe temperature reaches or exceeds 50 (35+15), the controller outputs the full speed signal and the fan runs at full speed.
    According to the specific performance of the fan, the actual speed of the fan will be somewhat different.

Setting Method:
P.S. The controller has supported the control of the reverse timing fan.
First, power off and remove the fan. Press the set button to electrify the controller. Keep the settings button always hold (about 3 seconds) until the three lights turn into double flash state and then release the button.
    The indicator lamp turns into a single light, which represents the entry mode setting state.
    The controller is divided into three kinds of working modes, corresponding to 1, 2, 3 indicator light double flashing, through short press button switch, set the long, press the button to save and exit the set mode and automatically back to normal working state. The three working modes are as follows:
    1>. conventional PWM fan control mode (default mode). This mode is used for the four wire fan control of the standard Intel specification.
    2>. conventional reverse sequence PWM fan control mode. This mode is used in most reverse timing four wire fan control. When the fan is in normal mode control, the speed change is opposite, and the control line is connected to the negative pole at full speed.
    3>. reverse sequence fan 80% control mode. This mode is used in a very rare type of reverse timing fan. When the fan is in conventional mode control, the speed change is opposite, and the control line is not turned when the negative electrode is connected.

Pin Definition:

 

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